Creating a glowing effect with nodes
There is a simple way to create a glow effect in Cycles.


Add a cube.
In the material section, Choose "Transparent BSDF" or "Glass BSDF" as the surface
and the colour of your choice.
Select "Emission" in the volume and choose the colour as white.The
strength can be of your choice





Add a place below the cube
Add another cube and scale it up slightly by pressing S and
dragging the pointer.
Make the colour of the cube black and choose the surface to be
"Emission"
Go to modifiers, chose wireframe, edit the thickness to your liking.





Place the wireframe over the cube and then Render.It should look
similar to the example below: